Area and Circumference of Circles

Calculate the area of Circle 4:

• 380.1 cm squared

• 430.2 cm squared

• 321.8 cm squared

Tags

CCSS.7.G.B.4

Calculate the area of Circle 5

• 334.9 cm squared

• 314.2 cm squared

• 658.1 cm squared

Tags

CCSS.7.G.B.4

Calculate the area of Circle 6

• 153.9 cm squared

• 198.0 cm squared

• 327.3 cm squared

Tags

CCSS.7.G.B.4

Calculate the area of circle 1:

• 11.6 cm squared

• 12.6 cm squared

• 13.6 cm squared

Tags

CCSS.7.G.B.4

A circular mirror has a 2 inch frame around it. The mirror itself is 8 inches in diameter. What is the area of the frame? Use 3.14 for pi.

(a)  

Tags

CCSS.7.G.B.4

Find the area of the quarter circle. Round you answer to the nearest hundredth.

• 58.88

• 78.50

• 7.85

• 157.00

Tags

CCSS.7.G.B.4

What is the Area Formula for a Circle?

• A = $\pi$ * r * r

• A = $\pi$ * d

• A = 2 * $\pi$ * r

Tags

CCSS.7.G.B.4

Match the following

• Arc Length

• circumference of a circle

• Area of a Circle

• Sector Area

Tags

CCSS.7.G.B.4

Match the following definitions to the terms:

• square units (units²)

• Circumference of a circle

• How much space a circle takes up

• Units of circumference

• feet, cm, inches

• Units of area

• Area of a circle

• The distance around a circle

Tags

CCSS.7.G.B.4

Mark has a circlular fire pit with a diameter of 5 feet

* Build a brick border around the pit.

* Find the area of pit.

Complete the statements about Mark's circular pit.

​ ​

To build the border, Mark needs a minimum of feet​ (a)  

The area of the pit, to the nearest square foot is ​ (b)  

• 16

• 20 sq ft

• 7

• 8

• 9

• 15

• 8 sq ft

• 79 sq ft

• 314 sq ft

Tags

CCSS.7.G.B.4